Latest revision as of 14:13, 21 February 2025

Copper Chromite[edit]

Copper chromite is an inorganic compound with the formula Cu₂Cr₂O₅. It is a black solid that is used as a catalyst in various chemical reactions. Copper chromite is known for its role in the hydrogenation of organic compounds and in the decomposition of hydrogen peroxide.

Structure[edit]

Copper chromite adopts a spinel structure, which is a common structure for mixed metal oxides. In this structure, the copper and chromium ions are distributed over the octahedral and tetrahedral sites in the oxide lattice. The spinel structure is characterized by its robustness and stability, which contributes to the effectiveness of copper chromite as a catalyst.

Preparation[edit]

Copper chromite can be prepared by the thermal decomposition of copper ammonium chromate. The process involves heating the precursor compound, which decomposes to form copper chromite and releases gases such as ammonia and water vapor. The resulting copper chromite is typically a fine black powder.

Applications[edit]

Copper chromite is widely used as a catalyst in the hydrogenation of organic compounds. It is particularly effective in the hydrogenation of esters to alcohols and in the reduction of nitro compounds to amines. Additionally, copper chromite is used in the decomposition of hydrogen peroxide, where it acts to catalyze the breakdown of hydrogen peroxide into water and oxygen.

Chemical reaction catalyzed by copper chromite.

Related Compounds[edit]

Copper chromite is related to other mixed metal oxides that also adopt the spinel structure. These include compounds such as cobalt chromite and nickel chromite, which have similar catalytic properties and are used in various industrial applications.

Safety and Handling[edit]

Copper chromite, like many chromium-containing compounds, should be handled with care. It is important to avoid inhalation of dust and to use appropriate personal protective equipment when handling the compound. Disposal of copper chromite should be conducted in accordance with local environmental regulations.

Related Pages[edit]

   This article is a inorganic compound–related stub. You can help WikiMD by expanding it!

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-'''Copper chromite''' is a chemical compound with the formula CuCr<sub>2</sub>O<sub>4</sub>. It is a black solid that is of interest mainly in the field of [[catalysis]] and materials science. Copper chromite is used as a catalyst in a variety of chemical reactions, owing to its stability at high temperatures and its ability to facilitate the decomposition of certain compounds, including hydrogen peroxide.
+= Copper Chromite =
-==Properties==
+[[File:Spinel.GIF|thumb|right|200px|Spinel structure of copper chromite.]]
-Copper chromite is an inorganic compound that exhibits a spinel structure, which is common among mixed oxide materials. The spinel structure contributes to its thermal stability and catalytic activity. It is insoluble in water but can be decomposed by strong acids and bases.
-==Synthesis==
+'''Copper chromite''' is an inorganic compound with the formula Cu<sub>2</sub>Cr<sub>2</sub>O<sub>5</sub>. It is a black solid that is used as a catalyst in various chemical reactions. Copper chromite is known for its role in the hydrogenation of organic compounds and in the decomposition of [[hydrogen peroxide]].
-Copper chromite can be synthesized through several methods, including the thermal decomposition of copper chromate (CuCrO<sub>4</sub>) or by the calcination of a mixture of copper nitrate (Cu(NO<sub>3</sub>)<sub>2</sub>) and chromium oxide (Cr<sub>2</sub>O<sub>3</sub>) at high temperatures.
-==Applications==
+== Structure ==
-===Catalysis===
+Copper chromite adopts a [[spinel]] structure, which is a common structure for mixed metal oxides. In this structure, the copper and chromium ions are distributed over the octahedral and tetrahedral sites in the oxide lattice. The spinel structure is characterized by its robustness and stability, which contributes to the effectiveness of copper chromite as a catalyst.
-The primary application of copper chromite is as a catalyst. It is particularly effective in the hydrogenation of certain organic compounds and the decomposition of hydrogen peroxide into water and oxygen. Its stability at high temperatures makes it suitable for processes that require elevated temperatures.
-===Materials Science===
+== Preparation ==
-In materials science, copper chromite is explored for its potential use in the development of new materials with unique properties, such as high-temperature stability and resistance to corrosion.
+Copper chromite can be prepared by the thermal decomposition of copper ammonium chromate. The process involves heating the precursor compound, which decomposes to form copper chromite and releases gases such as ammonia and water vapor. The resulting copper chromite is typically a fine black powder.
-==Safety==
+== Applications ==
-As with many chemical compounds, the handling of copper chromite requires caution. It should be stored in a cool, dry place and handled with protective equipment to avoid inhalation or skin contact.
+Copper chromite is widely used as a catalyst in the [[hydrogenation]] of organic compounds. It is particularly effective in the hydrogenation of esters to alcohols and in the reduction of nitro compounds to amines. Additionally, copper chromite is used in the decomposition of [[hydrogen peroxide]], where it acts to catalyze the breakdown of hydrogen peroxide into water and oxygen.
-==See Also==
+[[File:Me2sabacateTocycloC10diol.svg|thumb|left|200px|Chemical reaction catalyzed by copper chromite.]]
+== Related Compounds ==
+Copper chromite is related to other mixed metal oxides that also adopt the spinel structure. These include compounds such as [[cobalt chromite]] and [[nickel chromite]], which have similar catalytic properties and are used in various industrial applications.
+== Safety and Handling ==
+Copper chromite, like many chromium-containing compounds, should be handled with care. It is important to avoid inhalation of dust and to use appropriate personal protective equipment when handling the compound. Disposal of copper chromite should be conducted in accordance with local environmental regulations.
+== Related Pages ==
+* [[Spinel]]
+* [[Hydrogenation]]
 * [[Catalysis]]
-* [[Inorganic chemistry]]
+* [[Chromium compounds]]
-* [[Material science]]
-* [[Hydrogen peroxide]]
+{{Inorganic-compound-stub}}
-[[Category:Inorganic compounds]]
 [[Category:Catalysts]]
-[[Category:Materials science]]
+[[Category:Copper compounds]]
+[[Category:Chromium compounds]]
-{{Chem-stub}}

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